summaryrefslogtreecommitdiffstats
path: root/commands/mem.c
diff options
context:
space:
mode:
authorJuergen Beisert <j.beisert@pengutronix.de>2007-11-09 21:13:55 +0100
committerJuergen Beisert <j.beisert@pengutronix.de>2007-11-12 16:28:23 +0100
commitd59c600c656d08410ea862c582fbd77432c3ca47 (patch)
tree6c03b005910d262d7740348dae648c2cdfc7fe2e /commands/mem.c
parent57cae4e82669748f94fad4d741c3fcf9cde128ac (diff)
downloadbarebox-d59c600c656d08410ea862c582fbd77432c3ca47.tar.gz
barebox-d59c600c656d08410ea862c582fbd77432c3ca47.tar.xz
separating memory commands
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Diffstat (limited to 'commands/mem.c')
-rw-r--r--commands/mem.c557
1 files changed, 0 insertions, 557 deletions
diff --git a/commands/mem.c b/commands/mem.c
deleted file mode 100644
index 09565505c4..0000000000
--- a/commands/mem.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * Memory Functions
- *
- * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
- */
-
-#include <common.h>
-#include <command.h>
-#include <init.h>
-#include <driver.h>
-#include <malloc.h>
-#include <errno.h>
-#include <fs.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <linux/stat.h>
-#include <xfuncs.h>
-
-#ifdef CMD_MEM_DEBUG
-#define PRINTF(fmt,args...) printf (fmt ,##args)
-#else
-#define PRINTF(fmt,args...)
-#endif
-
-#define RW_BUF_SIZE (ulong)4096
-static char *rw_buf;
-
-static char *DEVMEM = "/dev/mem";
-
-/* Memory Display
- *
- * Syntax:
- * md{.b, .w, .l} {addr} {len}
- */
-#define DISP_LINE_LEN 16
-
-int memory_display(char *addr, ulong offs, ulong nbytes, int size)
-{
- ulong linebytes, i;
- u_char *cp;
-
- /* Print the lines.
- *
- * We buffer all read data, so we can make sure data is read only
- * once, and all accesses are with the specified bus width.
- */
- do {
- char linebuf[DISP_LINE_LEN];
- uint *uip = (uint *)linebuf;
- ushort *usp = (ushort *)linebuf;
- u_char *ucp = (u_char *)linebuf;
-
- printf("%08lx:", offs);
- linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
-
- for (i=0; i<linebytes; i+= size) {
- if (size == 4) {
- printf(" %08x", (*uip++ = *((uint *)addr)));
- } else if (size == 2) {
- printf(" %04x", (*usp++ = *((ushort *)addr)));
- } else {
- printf(" %02x", (*ucp++ = *((u_char *)addr)));
- }
- addr += size;
- offs += size;
- }
-
- puts (" ");
- cp = (u_char *)linebuf;
- for (i=0; i<linebytes; i++) {
- if ((*cp < 0x20) || (*cp > 0x7e))
- putchar('.');
- else
- printf("%c", *cp);
- cp++;
- }
- putchar('\n');
- nbytes -= linebytes;
- if (ctrlc()) {
- return -EINTR;
- }
- } while (nbytes > 0);
-
- return 0;
-}
-
-int open_and_lseek(const char *filename, int mode, ulong pos)
-{
- int fd, ret;
-
- fd = open(filename, mode | O_RDONLY);
- if (fd < 0) {
- perror("open");
- return fd;
- }
-
- ret = lseek(fd, pos, SEEK_SET);
- if (ret < 0) {
- perror("lseek");
- close(fd);
- return ret;
- }
-
- return fd;
-}
-
-static int mem_parse_options(int argc, char *argv[], char *optstr, int *mode,
- char **sourcefile, char **destfile)
-{
- int opt;
-
- getopt_reset();
-
- while((opt = getopt(argc, argv, optstr)) > 0) {
- switch(opt) {
- case 'b':
- *mode = O_RWSIZE_1;
- break;
- case 'w':
- *mode = O_RWSIZE_2;
- break;
- case 'l':
- *mode = O_RWSIZE_4;
- break;
- case 's':
- *sourcefile = optarg;
- break;
- case 'd':
- *destfile = optarg;
- break;
- default:
- return -1;
- }
- }
-
- return 0;
-}
-
-static int do_mem_md(cmd_tbl_t *cmdtp, int argc, char *argv[])
-{
- ulong start = 0, size = 0x100;
- int r, now;
- int ret = 0;
- int fd;
- char *filename = DEVMEM;
- int mode = O_RWSIZE_4;
-
- errno = 0;
- if (mem_parse_options(argc, argv, "bwls:", &mode, &filename, NULL) < 0)
- return 1;
-
- if (optind < argc) {
- if (parse_area_spec(argv[optind], &start, &size)) {
- printf("could not parse: %s\n", argv[optind]);
- return 1;
- }
- if (size == ~0)
- size = 0x100;
- }
-
- fd = open_and_lseek(filename, mode | O_RDONLY, start);
- if (fd < 0)
- return 1;
-
- do {
- now = min(size, RW_BUF_SIZE);
- r = read(fd, rw_buf, now);
- if (r < 0) {
- perror("read");
- goto out;
- }
- if (!r)
- goto out;
-
- if ((ret = memory_display(rw_buf, start, r, mode >> O_RWSIZE_SHIFT)))
- goto out;
-
- start += r;
- size -= r;
- } while (size);
-
-out:
- close(fd);
-
- return errno;
-}
-
-static __maybe_unused char cmd_md_help[] =
-"Usage md [OPTIONS] <region>\n"
-"display (hexdump) a memory region.\n"
-"options:\n"
-" -s <file> display file (default /dev/mem)\n"
-" -d <file> write file (default /dev/mem)\n"
-" -b output in bytes\n"
-" -w output in halfwords (16bit)\n"
-" -l output in words (32bit)\n"
-"\n"
-"Memory regions:\n"
-"Memory regions can be specified in two different forms: start+size\n"
-"or start-end, If <start> is ommitted it defaults to 0. If end is ommited it\n"
-"defaults to the end of the device, except for interactive commands like md\n"
-"and mw for which it defaults to 0x100.\n"
-"Sizes can be specified as decimal, or if prefixed with 0x as hexadecimal.\n"
-"an optional suffix of k, M or G is for kibibytes, Megabytes or Gigabytes,\n"
-"respectively\n";
-
-
-U_BOOT_CMD_START(md)
- .maxargs = CONFIG_MAXARGS,
- .cmd = do_mem_md,
- .usage = "memory display",
- U_BOOT_CMD_HELP(cmd_md_help)
-U_BOOT_CMD_END
-
-static int do_mem_mw ( cmd_tbl_t *cmdtp, int argc, char *argv[])
-{
- int ret = 0;
- int fd;
- char *filename = DEVMEM;
- int mode = O_RWSIZE_4;
- ulong adr;
-
- errno = 0;
-
- if (mem_parse_options(argc, argv, "bwld:", &mode, NULL, &filename) < 0)
- return 1;
-
- if (optind + 1 >= argc) {
- u_boot_cmd_usage(cmdtp);
- return 1;
- }
-
- adr = strtoul_suffix(argv[optind++], NULL, 0);
-
- fd = open_and_lseek(filename, mode | O_WRONLY, adr);
- if (fd < 0)
- return 1;
-
- while (optind < argc) {
- u8 val8;
- u16 val16;
- u32 val32;
- switch (mode) {
- case O_RWSIZE_1:
- val8 = simple_strtoul(argv[optind], NULL, 0);
- ret = write(fd, &val8, 1);
- break;
- case O_RWSIZE_2:
- val16 = simple_strtoul(argv[optind], NULL, 0);
- ret = write(fd, &val16, 2);
- break;
- case O_RWSIZE_4:
- val32 = simple_strtoul(argv[optind], NULL, 0);
- ret = write(fd, &val32, 4);
- break;
- }
- if (ret < 0) {
- perror("write");
- break;
- }
- optind++;
- }
-
- return errno;
-}
-
-static __maybe_unused char cmd_mw_help[] =
-"Usage: mw [OPTIONS] <region> <value(s)>\n"
-"Write value(s) to the specifies region.\n"
-"see 'help md' for supported options.\n";
-
-U_BOOT_CMD_START(mw)
- .maxargs = CONFIG_MAXARGS,
- .cmd = do_mem_mw,
- .usage = "memory write (fill)",
- U_BOOT_CMD_HELP(cmd_mw_help)
-U_BOOT_CMD_END
-
-static int do_mem_cmp(cmd_tbl_t *cmdtp, int argc, char *argv[])
-{
- ulong addr1, addr2, count = ~0;
- int mode = O_RWSIZE_1;
- char *sourcefile = DEVMEM;
- char *destfile = DEVMEM;
- int sourcefd, destfd;
- char *rw_buf1;
- int ret = 1;
- int offset = 0;
- struct stat statbuf;
-
- if (mem_parse_options(argc, argv, "bwls:d:", &mode, &sourcefile, &destfile) < 0)
- return 1;
-
- if (optind + 2 > argc) {
- u_boot_cmd_usage(cmdtp);
- return 1;
- }
-
- addr1 = simple_strtoul(argv[optind], NULL, 0);
- addr2 = simple_strtoul(argv[optind + 1], NULL, 0);
-
- if (optind + 2 == argc) {
- if (sourcefile == DEVMEM) {
- printf("source and count not given\n");
- return 1;
- }
- if (stat(sourcefile, &statbuf)) {
- perror("stat");
- return 1;
- }
- count = statbuf.st_size - addr1;
- } else {
- count = simple_strtoul(argv[optind + 2], NULL, 0);
- }
-
- sourcefd = open_and_lseek(sourcefile, mode | O_RDONLY, addr1);
- if (sourcefd < 0)
- return 1;
-
- destfd = open_and_lseek(destfile, mode | O_RDONLY, addr2);
- if (destfd < 0) {
- close(sourcefd);
- return 1;
- }
-
- rw_buf1 = xmalloc(RW_BUF_SIZE);
-
- while (count > 0) {
- int now, r1, r2, i;
-
- now = min(RW_BUF_SIZE, count);
-
- r1 = read(sourcefd, rw_buf, now);
- if (r1 < 0) {
- perror("read");
- goto out;
- }
-
- r2 = read(destfd, rw_buf1, now);
- if (r2 < 0) {
- perror("read");
- goto out;
- }
-
- if (r1 != now || r2 != now) {
- printf("regions differ in size\n");
- goto out;
- }
-
- for (i = 0; i < now; i++) {
- if (rw_buf[i] != rw_buf1[i]) {
- printf("files differ at offset %d\n", offset);
- goto out;
- }
- offset++;
- }
-
- count -= now;
- }
-
- printf("OK\n");
- ret = 0;
-out:
- close(sourcefd);
- close(destfd);
- free(rw_buf1);
-
- return ret;
-}
-
-static __maybe_unused char cmd_memcmp_help[] =
-"Usage: memcmp [OPTIONS] <addr1> <addr2> <count>\n"
-"\n"
-"options:\n"
-" -b, -w, -l use byte, halfword, or word accesses\n"
-" -s <file> source file (default /dev/mem)\n"
-" -d <file> destination file (default /dev/mem)\n"
-"\n"
-"Compare memory regions specified with addr1 and addr2\n"
-"of size <count> bytes. If source is a file count can\n"
-"be left unspecified in which case the whole file is\n"
-"compared\n";
-
-U_BOOT_CMD_START(memcmp)
- .maxargs = CONFIG_MAXARGS,
- .cmd = do_mem_cmp,
- .usage = "memory compare",
- U_BOOT_CMD_HELP(cmd_memcmp_help)
-U_BOOT_CMD_END
-
-static int do_mem_cp(cmd_tbl_t *cmdtp, int argc, char *argv[])
-{
- ulong count;
- ulong dest, src;
- char *sourcefile = DEVMEM;
- char *destfile = DEVMEM;
- int sourcefd, destfd;
- int mode = O_RWSIZE_1;
- struct stat statbuf;
- int ret = 0;
-
- if (mem_parse_options(argc, argv, "bwls:d:", &mode, &sourcefile, &destfile) < 0)
- return 1;
-
- if (optind + 2 > argc) {
- u_boot_cmd_usage(cmdtp);
- return 1;
- }
-
- src = simple_strtoul(argv[optind], NULL, 0);
- dest = simple_strtoul(argv[optind + 1], NULL, 0);
-
- if (optind + 2 == argc) {
- if (sourcefile == DEVMEM) {
- printf("source and count not given\n");
- return 1;
- }
- if (stat(sourcefile, &statbuf)) {
- perror("stat");
- return 1;
- }
- count = statbuf.st_size - src;
- } else {
- count = simple_strtoul(argv[optind + 2], NULL, 0);
- }
-
- sourcefd = open_and_lseek(sourcefile, mode | O_RDONLY, src);
- if (sourcefd < 0)
- return 1;
-
- destfd = open_and_lseek(destfile, O_WRONLY | O_CREAT | mode, dest);
- if (destfd < 0) {
- close(sourcefd);
- return 1;
- }
-
- while (count > 0) {
- int now, r, w;
-
- now = min(RW_BUF_SIZE, count);
-
- if ((r = read(sourcefd, rw_buf, now)) < 0) {
- perror("read");
- goto out;
- }
-
- if ((w = write(destfd, rw_buf, r)) < 0) {
- perror("write");
- goto out;
- }
-
- if (r < now)
- break;
-
- if (w < r)
- break;
-
- count -= now;
- }
-
- if (count) {
- printf("ran out of data\n");
- ret = 1;
- }
-
-out:
- close(sourcefd);
- close(destfd);
-
- return ret;
-}
-
-static __maybe_unused char cmd_memcpy_help[] =
-"Usage: memcpy [OPTIONS] <src> <dst> <count>\n"
-"\n"
-"options:\n"
-" -b, -w, -l use byte, halfword, or word accesses\n"
-" -s <file> source file (default /dev/mem)\n"
-" -d <file> destination file (default /dev/mem)\n"
-"\n"
-"Copy memory at <src> of <count> bytes to <dst>\n";
-
-U_BOOT_CMD_START(memcpy)
- .maxargs = CONFIG_MAXARGS,
- .cmd = do_mem_cp,
- .usage = "memory copy",
- U_BOOT_CMD_HELP(cmd_memcpy_help)
-U_BOOT_CMD_END
-
-static struct device_d mem_dev = {
- .name = "mem",
- .id = "mem",
- .map_base = 0,
- .size = ~0, /* FIXME: should be 0x100000000, ahem... */
-};
-
-static struct driver_d mem_drv = {
- .name = "mem",
- .probe = dummy_probe,
- .read = mem_read,
- .write = mem_write,
-};
-
-static struct driver_d ram_drv = {
- .name = "ram",
- .probe = dummy_probe,
- .read = mem_read,
- .write = mem_write,
- .type = DEVICE_TYPE_DRAM,
-};
-
-static struct driver_d rom_drv = {
- .name = "rom",
- .probe = dummy_probe,
- .read = mem_read,
-};
-
-static int mem_init(void)
-{
- rw_buf = malloc(RW_BUF_SIZE);
- if(!rw_buf) {
- printf("%s: Out of memory\n", __FUNCTION__);
- return -1;
- }
-
- register_device(&mem_dev);
- register_driver(&mem_drv);
- register_driver(&ram_drv);
- register_driver(&rom_drv);
- return 0;
-}
-
-device_initcall(mem_init);
-